However, projected changes in environmental conditions may result not only in a reduction in the proportion of anthropogenic CO2 forests remove from the atmosphere, but also in forests becoming a source of GHG to the atmosphere (example, [6 8]).
Salt marshes have been proposed to be a net sink of CO2 from the atmosphere, though remineralization of carbon exported to continental margins may in fact be a source of CO2 to the atmosphere [8].
However, in years of extreme droughts such as that of 2010, the increase in frequency and intensity of the fires turns the Amazon into a source of CO2 to the atmosphere.
Understory and soil carbon exchange always represented a source of carbon to the atmosphere, with a strong seasonal cycle in source strength.
In theory, these fluxes are balanced in a mature forest, so the trees are neither a net sink--as the storage process is called--nor a source of CO2 to the atmosphere.
For example, Brümmer et al. [6] showed that a Southern Sudanian Savanna ecosystem in Burkina Faso was a source of CO2 into the atmosphere in the dry season, but only marginally, whereas appreciable CO2 uptake was observed in the rainy season.
All the aforementioned studies indicate clearly that, besides contributions from vehicular sources, photochemical secondary formations are also a source of PM in urban atmosphere.
For example, Brümmer et al. [ 6] showed that a Southern Sudanian Savanna ecosystem in Burkina Faso was a source of CO2 into the atmosphere in the dry season, but only marginally, whereas appreciable CO2 uptake was observed in the rainy season.
Your goal is to become part of his atmosphere: a source of comfort and ease.
Chassefière, E. Metastable methane clathrate particles as a source of methane to the Martian atmosphere.
Heating and cooling of a building is a major energy demand and a source of CO2 emission in the atmosphere.
